Key for watchmen&#39;s time-detectors.



I PATENTED AUG. 18, 1908. P. MOOSMANN. KEY FOR WATOHMENS TIME DETECTORS.

APPLIO TION FILED DEG.6 1904. n WED .T .11 1908.

A R M M SSHEETS-SHEET 1.

a mm. ntoz PATENTED AUG. 18, 1908.

- P. MOOSMANN.

KEY FOR WATOHMENS TIME DETECTORS.

SSHEBTS-SHEET 2.

APPLICATION FILED DEC. 6, 1904. RENEWED JAN. 11, 1908' 8 viva W606 may"ml ozwzqd No. 896,408. PATENTED AUG. 18, 1908.

' P. MOOSMANN.

KEY FOR WAIGHMENS TIME DETECTORS.

APPLICATION FILED DBO. 6, 1904. RENEWED JAN. ll 1908.

3 SHEETS-SHEET 3.

5] Woe whoa Elli/60677222212 ZMQM PAUL MOOSMANN, OF NEW YORK, N. Y.

KEY FOR WATCHMENS TIME-DETECTORS.

Specification of Letters Patent.

Patented Aug. 18, 1908.

Application filed. December 6, 1904, Serial No. 235,769. Renewed January11, 1908. Serial No. 410,444.

' citizen of the Empire of Germany, residing in New York, borough ofBrooklyn, in the State of New York, have invented certain new and usefulImprovements in Keys for Watchmens TimeDetectors, of which the followingis a specification.

In watchmens time-detectors, and more especially in portabletime-detectors of that class in which a paper dial is rotated by aclock-train and marked from time to time by the insertion of keyssuspended at difierent' stations of the building to be watched, itfrequently occurs that the time-detector carried by the watchman istampered with by producing the marks on the dial by means of toolsinserted into the device, without the watchman making regularly therounds to all the stations where the keys are suspended, so thatconsequently not that full and complete record of the periodical markingas required, is obtained, and thereby to some extent the safety andsecurity of the building to be watched jeopardized.

The object of this invention is to increase the control of the watchmanby providing keys upon which, when they are used to actuate thetime-detector clock, there is automatically produced an indication ofsuch actuation.

The invention also aims to provide a timedetector key embodyingrecording mechanism by which the actuations of the watchmans clock bysaid key are automatically recorded.

A further object of the invention is to provide means whereby the exactnumber of actuations of the clock by the key may be ascertained from therecord made by the recording mechanism of the key.

The invention also purposes the provision of a key embodying recordingmechanism and provided with suspension means, the former being removablefrom the key only after the latter has been detached.

The invention also contemplates the provision of means whereby theremoval and replacement of the cover by which the record-disk isaccessible are automatically recorded on such disk.

It is also an object of the invention to provide the cover just referredto with a marking device which serves the double purpose of recordingthe actuations of the watchmans clock and the removal and replacement ofsaid cover.

The invention also aims to furnish a watchmans time-detector keyembodying mechanism by which two records of the actuations of thedetector are made, one of these records representing the actuations ofthe detector up to a certain number and the other representing suchactuations up to a much larger numb er, there being meansprovidedwhereby the actual number of actuations represented by each suchrecord may be readily ascertained.

In the accompanying drawings, Figure 1 is a side-elevation of awatchmans timedetector key constructed in accordance with the invention,said key being shown in position for insertion into the time-detector orwatchmans clock, Fig. 2 is a side-elevation of the key, drawn on alarger scale and showing the cover of the casing removed, Fig. 3 is aview of the cover looking at the inner face thereof, Fig. 4 is a view ofthe pin whereby the cover is held on the casing, Fig. 5 shows the largerrecord-disk upon which the actuations of the detector up to a certainnumber are recorded, Fig. 6 is a view of the smaller record-disk uponwhich the actuations of the detector up to a much larger number arerecorded, Fig. 7 is a vertical longitudinal section of the key, Fig. 8is a side-elevation of the key, with the cover and worm-gear removed inorder to show the parts behind the latter, Fig. 9 is a section on line9, 9 of Fig. 1, but drawn on a larger scale, Figs. 10 and 11 arerespectively a rearview and a transverse section of the push devicesused in connection with the mechanism for recording on the smallerrecord-disk, Fig. 12 is a side-elevation of the key, with the coverremoved and with the record-disks placed in position in the casing, Fig.13 is an end-view of Fig. 12, Figs. 14, 15, 16 and 17 show the largerrecord-disk with different records thereon, Figs. 18 and 19 illustratethe indicating-dial for the larger record-disk and the manner in whichsaid dial is used to ascertain the number of actuations represented bythe record-line of said disk, and Fig. 20 shows the indicatingdial forreading off the actuations represented by the line on the smallerrecorddisk, such a disk being shown in position on said dial.

Similar letters of reference indicate corresponding parts throughout theseveral views.

Referring to the drawings A denotes a key, such as is used for markingthe well-known watchmens time detectors in which a timedial is driven bya clock-train. The keys are provided with wards to which differ inlength at the different stations where the keys are suspended, eachstation having a definite length of ward, so that the keys at thedifferent stations mark the time-dial in the watchmans clock ortime-detector at different points on the face of the same. The shank ofthe key, instead of being made solid as heretofore, is made tubular,that is to say, in the shape of a barrel, so as to per mit the insertionof an actuating spindle, S, arranged in the cover of the timedetector,into the barrel of the key, as shown in Fig. 1, said spindle being madeof sufficient length and tapering at its end, in order to engage, whenthe key is inserted into the time-detector, the recessed end of aspindle s, which is arranged in the tubular extension of the key-barrel.The casing C is preferably of rectangular shape at the part adjacent toand in line with the key-barrel, but the part projecting therefrom, inwhich the recording-mechanism is contained, is of semi-circular shape.The inner end of the spindle s is made of larger diameter so as to forma shaft 8 which is forced against the interior shoulder s of thestraight portion of the casing by a helical cushion-spring s interposedbetween the end of the shaft 5 and a screw-plug s, the latter beingprovided with. a diametrical groove or nick for the insertion of ascrew-driver, by which the screw-plug is screwed into or out of theenlarged bore for the shaft 8 Ordinarily, the screw-plug is covered by aplate Z which is retained in the end of thecasing by a hook-shapedkeeper Z and. a fastening screw 1*, the head of which is counter-sunkinto the plate Z and covered by the end link Z of a suspensionchain Zinserted into a keeper Z on the casing in line with the keeper Z. Theopposite end of the suspension chain Z is attached by a lead seal Z orin any other suitable manner to the station at which the key is to besuspended. The link Z covers the fastening-screw Z when the key is in anormal position of suspension, while the plate Z covers the screwplug 8so as not to disclose the position of the screws. The end-link Z andplate Z prevent access to the screws until the suspensionchain isdetached from the keeper 1.

The enlarged shaft 8 of the spindle s is provided with a worm s, whichmeshes with the teeth of a worm-gear s loosely mounted. on the hub ofthe gear-wheel g which is arranged behind the same and which turns on acentral, tubular, internally threaded post g mounted on the bottom ofthe casing G as shown in Fig. 9. The casing C is provided with acircumferential flange or rim having an interior shoulder (Z andring-shaped seat d for the disk-shaped cover D, as shown in Fig. 9. Thecover D is provided with a central opening which is fitted on thetubular center-post of the casing and provided at one point of itscircumference with a projecting pin adapted to engage a small socket d"in the casing, adjacent an index-mark d in the casing (l, as shownclearly in Figs. 1, 2 and 3 of the drawings. The disk-shaped cover D isplaced in position on the casing C by first inserting the projecting pin(t into the socket near the index mark d" and then dropping the disk onthe seat of the casing C, after which it is clamped in position byinserting a screw (Z with turned head d" into the tubular post of thecasing U, as shown in Figs. 1 and 9. The disk-shaped cover D is providedat its underside with two marking-devices j" which are made of circularspringwires, one concentric within the other, and located in groovesf atthe underside of the cover D, one end of each marker being attached tothe cover D. The free ends of said markers are bent up and provided witha composition of lead or other metal capable of making a mark whenplaced in contact with a paperdisk. The outer marker abuts against apaper disk which is placed by its center-opening in position on the hubof the worm-gear s and securely held thereon by pins f on the face ofthe wormgear 8, said pins piercing the )aper-disk. Three of these pinsare preferably used, as shown clearly in Figs. 2 and 7, the pins beinglocated at the corners of a triangle the base of which is somewhatshorter than the sides. The bent-up end of the outer marking-spring fispressed into contact with the paper-disk f when the cover D is placed inposition on the casing l in order to mark on the disk first a shortradial line or mark, as will be presently explained, and then an arcuateor circular line or groove as the disk is rotated by the worm-geartransmission operated by the successive actuations of the spindle S inthe time-detector. As one full rotation of the paper-disk corresponds toa full. rotation of the worm-gear s which again corresponds to adefinite number of individual actuations of the worm-spindle in the keyby the spindle in the time-detector, the paper-disk forms a record. ofthese actuations for a certain period of time, such. as a week, afterwhich the disk is removed, filed and a new disk placed in position inthe casing of the key for the next following week, and so on, the recordon the disks showing thereby that the required. number of markings havebeen made at each station represented by a key. For removing thepaper-diskj, the retaining screw d is unscrewed and the cover removedafter which a new recording-disk is placed in position in the pins ofthe worm-gear s and the cover I) placed again in position on the easing,the key being then again in condition for recording the actuations ofthe time-detector.

The exact number of actuations represented by the arcuate line on thedisk f is indicated by a device to be hereinafter described.

The removal of the worm-gear s from the casing is prevented by means ofthe set-screw l, which is screwed into a threaded socket l on the casingbelow the covering plate Z, said screw serving also for holding theplate Z in position, the head of the screw Z being covered by theend-link 1*, so as to be invisible except on a careful inspection of thekeys. The inner tapering end of the screw Z projects over the edge ofthe worm-gear s and prevents itbeing lifted out of the casing fortampering With the interior construction of the key-controllingmechanism.

From the underside of the worm-wheel 8- projects a pin a, which engagesa socket n of a push-ring n interposed between the worm-wheel and thegear-wheel g and guided on the hub of said gear-wheel. The ring n isprovided at one point of its circumference With an aperture n throughwhich projects the upwardly bent end of a curved pushspring n which isarranged in a circular groove at the underside of the ring W, as shownin Figs. 8, 10 and 11. This pushspring a is attached at the opposite endto the push-ring n and adapted to engage the arms of a spur-wheel n soas to turn the lat ter in the direction shown by the arrow in Fig. 8after each full rotation of the worm gear 8. The spur-wheel n turnsloosely on a stub-shaft n attached to the bottom of the casing C, thehub of said spur-wheel carrying a pinion n which meshes with the teethof the gear-wheel 9 so as to turn the same for the distance of one toothat each engagement of the push-spring n with one of the arms of thespur-wheel. spur-wheel n are always in contact with the circumference ofthe push-ring n so that the spur-wheel can only be turned when the armnext adjacent to the projecting end of the push-spring n pushes backthis projecting end in the aperture or recess a far enough forpermitting the free turning of the spurwheel and the release of thespring-end from the arm after the required motion has been imparted tothe spur-wheel for moving the gear-wheel 9 forward for the distance ofone tooth, and so on after every complete rotation of the gear-wheel .9.

Upon the outer face of the hub of the gear wheel 9 are located aplurality of pins 9 which serve to hold against said face a smallrecord-disk e, as shown in Figs. 8 and 12. This disk is arranged withinthe outer record disk f and is so disposed that the inner Two of thearms of the much larger number than can be recorded by the larger diskfIn order to ascertain the exact number of actuations representedby theline upon the smaller record disk it is necessary to employ anindicating dial which will be hereinafter described. However, it isevident that without the use of other devices the inner and outer recorddisks when marked upon constitute records of the actuation of thedetector.

The mechanism so far described forms a record of the actuation of thetime-detector at the different stations where the keys are suspended,independently of the detector, so that the regular visiting of theindividual stations by the watchman for marking the timedetector by thekeys is recorded independently of and in addition to the marking of thedial of the time-detector, whereby the use of any substitute orfraudulent dialmarking devices can be readily discovered and prevented.The exchangeable paperdisks with the arc-shaped or circular records madeby the marking-devices on the same form thereby a record independentlyof and auxiliary to the time-detector record for securing the faithfulattendance of the watchman in making his regular periodical rounds toall the stations of the building placed in his care.

The surfaces of the paper record-disks are preferably coated with asuitable glaze which is capable of showing clearly the marks of themarking-points, which are preferably made of some soft metal in order tomake light yet distinct marks on the record-disks, in con nection withshort radial marks, caused by the marking-points by the removal andreplacing of the cover C, as indicated in Figs. 20 to 23; said radialmarks being caused by the forcing of the springs f in the direction ofthe cover by means of the worm-gear against which they abut, and by thereleasing of said springs from that position, ac cording as the coverisplaced in or removed from position. By the successive actuations ofthe detectors the paper-disks f 6, are moved by the worm-gear s and thehub of the gear-wheel g respectively and marked by their correspondingmarkers. When the cover is removed within twenty four hours, that is tosay, one day after the first or initial mark, the outer disk f hasadvanced for a small distance and received a short arcuate mark, by themarking-point. The removal i in which case the radial mark is producedby the radial marking-points at the end of a longer arc-shapedmarking-line, as shown in Fig. 14, the removal of the cover and its replacing producing each a corresponding radial mark inwardly from thearc-shaped line.

For the purpose of enabling the actual number of actuations representedby the record-lines on the large and small record-disks to beascertained, two indicating-dials E, F are provided. The dial E isprovided with graduations representing actuations up to a certainnumber, and with an index-hand E; while the indicating-dial F isprovided with graduations which represent a much larger number ofactuations, and with an indexhand F The dial E is used in connectionwith the large record-disk f to read off the number of actuationsrepresented by the line on the latter and the dial F is similarly usedin connection with the small record-disk e, the disks being placed forthis purpose on the respective dials, as shown. It is obvious that thesedials must be graduated in accordance with the number of actuationsrepresented by the lines on their respective disks.

When the paper-disks f are removed and placed in position on the ownerscontrollingdial, as shown in Figs. 18 and 19, the owner knows by thenumber of actuations indicated by the arc-shaped lines on thegraduations of his dial whether or not the watchman has attendedproperly to his beats and operated the keys at all the stationsregularly for every night of the week. When for instance, the initialmark on the paper-disk is placed in line with the index-hand E of thedial, which has been placed to zero, the number of actuations which isread off 011 the dial is 42, that is to say, six actuations for everynight of the week, it being assumed that the watchman makes his roundsevery two hours from six oclock at night to six oolock in the morning.WVhen an hourly round is required, double the number of actuations wouldbe indicated on the owners indicating-dial.

When the paper-disk is to be used for a longer period of time, themarking continues until a complete circle is obtained, either bycontinuing the former are, or when replacing it in position by doublingup on the same line, as shown in Fig. 17. When, however, the

marking is continued without interruption for a term of several weeks,the beginning of the next period will not lap over the initial orstarting mark, but will begin at some distance from the same. \Vhen morethan say 100 actuations have been made, then the inner recording-disk awill receive its mark and continue the control for every hundredactuations registered on the outer disk. In this manner the smallerpaper-disk furnishes the record for a larger number of actuations andcan be readily used in connection with the dial F as shown in Fig. 20for reading oil the actuations for any desired period of time.

The paper recording disks, both the larger and smaller, can be readilymailed to the owner or to the insurance company when a personalinspection of the stations at the building insured is not desired, allthat is necessary being to place said disks on their correspondingi1idicating-dials and note how many actuations have been made within agiven time since the last reading. In this manner a very effectiveindependent record can be obtained, without any possibility of tamperingwith the time-detector.

Whether the paper-disks are intended to be used for a daily, monthly, orother periodical control, they perform in all cases their function in areliable manner, indicating by the short radial marks on the arc-shapedor circular lines the time when the cover has been removed and replacedfrom the keycontrolling-device. All that is necessary for the owner orinsurance company is to keep a record of the last reading, so that therecorddisks can be placed in proper position. on the dials for readingoff the proper record of the actuations of the keys by the watchman incharge.

Another advantage of the improved key is that if for any reason theordinary watchmans time-clock should stop, then even if the watchmanshould make his regular rounds the clock would furnish absolutely norecord of it; whereas with the improved key, the stopping of the clockwould not materially impair the record for that particular night, aseach key would show how many times it had been used. The recordingmechanisms of each key is actuated by turning the keys around at theinside of the clock and. as they have no connection whatever with theworking movement of the clock the stopping of the same would have noeffect upon the disks of the keys when used in the ordinary way, and thekeyswould show the same records as if the clock had been running.

Another point of advantage is that in case of a fire and the destructionof the watchmans clock in consequence thereof, there would be absolutelyno proof that the watchman had been doing his duty on that particularnight but if the improved keys were used and at least some of the keysshould be found they would show that they had been used.

Having thus described my invention, I said detector to actuate the same,and mechclaim as new and desire to secure by Letters Patent:

1. The combination, with a portable timedetector clock, of means foractuating the same, and means for automatically indicat ing on saidmeans each such actuation.

2. The combination, with a time-detector, of means to mechanicallyactuate the same, and means carried by said actuating means whereby arecord of such actuations on the latter means is automatically produced.

3. The combination, with a portable timedetector clock of the type inwhich a dial is rotated by a clock-train, of-means to actuate said clockto mark on such dial, and means for automatically recording on saidmeans such actuations.

4. The combination, with a portable watchmans clock, of a key insertibletherein to actuate the same, and means whereby the acitiuations of theclock are indicated on the ey. I

5. The combination, with a time-detector, of a key insertible therein toactuate the same, and means for indicating 011 said key each suchactuation.

6. The combination, with a time-detector, of a key adapted for insertiontherein to actuate the same, and means carried by said key forindicating on the latter such actuations.

7. The combination, with a time-detector, of a key adapted for insertiontherein to actuate the same, and means carried by said key for recordingon the latter'such actuations.

8. The combination, with a time-detector, of a key to actuate the same,means carried by said key to hold a record of the actuations of saiddetector thereby, and means for automatically forming such record.

9. The combination, with a portable timedetector, of a key to actuatethe same, means carried by said key to hold a record of the actuationsof said detector thereby, and means also carried by the key forautomatically forming such record.

10. The combination, with a portable timedetector, of a key to actuatethe same, means carried by said key to hold a record of the actuationsof said detector thereby, means for forming such record, and means forindicating the number of actuations represented by such record.

11. The combination, with a time-detector, of a key embodying award-carrying barrel adapted for insertion and rotation therein toactuate said detector, and means carried by said key for automaticallyindicating on the latter such actuations.

12. The combination, with a watchmans time-detector, of a key embodyingawardcarrying barrel insertible and rotatable in anism carried by saidkey for recording on the latter such rotations.

'13. 'A watchmans time-detector key provided with mechanism forrecording the actuations of a detector, and means for suspending saidkey, said recording mechanism being removable from the latter only uponthe removal of said suspending means.

14. A key for watchmans time-detectors, provided with mechanism forrecording the actuations of a detector, and an independent device forindicating the number of actuations of said recording mechanism.

15. A key for watchmans time-detectors,

provided with mechanism for recording the actuations of a detector, andan indicatingdial for indicating the actuations of said mechanism.

16. A key for watchmans time-detectors, provided with mechanism forrecording the actuations of a detector, said mechanism embodying aWorm-gear, and means for indicating the number of rotations of saidworm-gear.

17. A key for time-detectors embodying a rotary spindle, and mechanismcarried by the key for recording on the key the rotations of saidspindle.

18. A key for watchmanstime-detectors, embodying a tubular barrel, aspindle rotatable in said barrel, and means for recording on said keythe rotations of said spindle.

19. The combination, with a portable watchmans time-detector, of a keytherefor,

mechanism carried by said key for recording the actuations of saiddetector, and means for indicating the number of such actuations.

20. The combination, with a portable time-detector, of a key thereforembodying mechanism for recording the actuations thereof, and a dial forindicating the number of such actuations.

21. A watchmans time-detector key includinga tubular barrel, a spindlerotatable therein, a worm-gear driven by said spindle,

' and means for recording the movement of said worm-gear. I

22. The combination, with a watchmans clock, of a key therefor,mechanism carried by the key for indicating on the key the actuations ofthe clock, and means carried by the clock to automatically operate saidindicating mechanism.

23. The combination, with a watchmans clock for automatically operatingsaid recording mechanism when the clock is actuated by the key.

25. The combination, with a watchmans time-detector embodying a spindlefixed against rotary movement, of a key for said time-detector providedwith a rotary spindle adapted to engage said fixed spindle and to berotated when said detector is actuated. by said key, and means actuatedby said rotary spindle for recording the rotations thereof.

26. A watchmans time-detector key embodying a tubular barrel providedwith a ward, a rotary spindle in said barrel, and means actuated by saidspindle for recording on the key the rotations thereof.

27. A watchmans time-detector key embodying a tubular ward-carryingbarrel, a casing fixed to said barrel, a rotary spindle extending fromsaid casing to the intermediate portion of said barrel, and meanscarried by said casing for recording the rotations of said. spindle.

28. The combination, with a timedetect0r, of a key therefor, meanscarried by said key for mounting a record-disk, and means forautomatically recording by a line upon such disk the actuations of said.detector by said key.

29. The combination, with a time detector, of a key therefor, meanscarried by said. key for mounting a record-disk, means for automaticallyrecording by a line upon such disk the actuations of said. detector bysaid key, and a dial for indicating the number of ac tuationsrepresented by such line.

30. In combination, with a time-detector, a key therefor, means formounting a recorddisk on said key, means for automatically recording bya line upon such disk the actuations of said detector by said key, and.independent indicating means adapted to be placed in or out of registerwith such disk.

31. A watchmans time-detector key embodying a rotary spindle, a(.lisk-earrying worm-gear driven thereby, and a device to mark upon thedisk.

32. A watchmans time-detector key embodying'a rotary spindle, a casing,a wormgear in said casing rotatable by said spindle, means on saidworm-gear to position a recorddisk, a cover for said casing, and amarker carried by said cover.

33. A key such as described embodying a rotary spindle provided with aworm, a worm-wheel meshing with said worm, and means associated withsaid wormwl1eel for recording the actuations thereof.

34. A watchmans time-detector key embodying a ward-carrying barrel, acasing, means in said casing to rotate a recorddisk, a cover for saidcasing, and a marker mounted 011 said cover.

35. In combination, a watchmans timedetector, a key fitting therein,means carried by said key to mount a record-disk, and means also carriedby said. key for automatically recording upon such disk the actuationsof said detector by said key.

36. A watchmans time-detector key including a casing, a cover therefor,and means in said casing for recording the number of actuations of adetector and for indicating the removal or replacement of said cover.

37. A watchmans time-detector key including a casing, means in saidcasing to mount a record-disk, a cover for said casing, and means forautomatically recording on said disk the removal of said cover.

38. A watchmans timedctector key including a casing, mechanism. in said.casing for recording the actuations of a detector and embodying meansfor rotatably mounting a record-disk, a cover for said casing, and meanscarried by said cover for recording by radial marks on said. disk theremoval or replacement of said cover.

39. A watchmans time-detector key i11- cluding a casing, means in saidcasing to mount a record-disk, means for rotating such disk, a cover forsaid casing, and means carried by said cover for recording on such diskthe movement thereof and the removal and replacement of said cover.

40. A watchn'ians time-detector key including a casing, a worm-gearjournaled therein and rotatable by the actuation of a detector, means toposition a record-disk on. said worm-gear, a cover for said. casing, andmeans for recording by an arcuate line 011 said disk the movement ofsaid. worm-gear, and by radial marks thereon the removal or replacementof said. cover.

41. The combinatimi, with a time-detector, of a key to actuate the same,means carried by said key for recording such actuations up to a certainnumber, and other means operated by said :lirst-named means forrecording such actuations up to a larger number.

42. A watehmans time-detector, in combination, with a key to actuate thesame, means carried by said key for recording such actuations up to acertain number, and other means for recording such actuations up to alarger number.

43. The combination, with a time-detector, of a key to actuate the same,mechanism carried by said key for recording such actua tions, and otherrecording mechanism operated periodically by said first-named.mechanism.

44.. A watchmans time-detector key including a worm-gear, means forrecording the movement of said wori'n-gear, a gearwheel periodicallyrotated by said wormgear, and means for recording the movement of saidgear-wheel.

45. A key for time-detectors embodying a worm-gear rotatable upon theactuation of a detector, means on said worm-gear to position arecord-disk, a gear-wheel,,mechanism interposed between said Worm-gearand gearwheel whereby the latter is rotated to the extent of one toothupon each complete rotation of the former, means on said gear-wheel toposition a record-disk, and marking devices intended to bear againstboth of said disks.

46. A key for Watchmens time-detectors comprising a casing, adisk-carrying Wormgear in said casing rotatable upon each actuation of adetector, a gear-wheel having a disk-carrying hub extending through saidWorm-gear, mechanism interposed between said worm-gear and gear-wheelwhereby the latter is rotated to the extent of one tooth upon eachcomplete rotation of the former, a cover for said casing, and markingdevices carried by said cover, one to bear against each such disk. 7

In testimony, that I claim the foregoing as my invention, I have signedmy name in presence of tWo subscribing witnesses.

PAUL MOOSMANN.

Witnesses:

PAUL GoEPEL, HENRY J. SUHRBIERL

